In the past 50 years, Earth’s oceans have been depleted and acidified to alarming degrees. Sylvia Earle, a longtime marine scientist, explains her plan to save at least a small part of them — along with our planet. Interview Conducted by Philip Bethge The swarm of jack mackerel looks like a silver wall in front […]

Jane Goodall spent years observing chimpazees in the wild. She discovered that the animals can commit murder and wage war. As an environmentalist, the British activist now spends more time observing humans — and says she still has hope for humanity.